6533b86cfe1ef96bd12c89f9
RESEARCH PRODUCT
The food and parasites of fish in some deep basins of northern L. Päijänne
P. BaggeL. Hakkarisubject
FisheryGeographybiologyEcologyHeterocopeFishingMacroparasiteFish <Actinopterygii>biology.organism_classificationFish stockSmeltCrustaceanDeep waterdescription
The composition of the fish stock, food and ‘macroparasites’ were studied in eleven basins (22–100 m) of Lake Jyvasjarvi and North Paijanne in August–September 1976. The fishing was done by means of a series of nets (meshes 15, 21 and 35 mm) laid on the bottom overnight. No fish were found in the two northernmost basins owing to bad oxygen conditions caused by waste waters. Smelt and burbot were the most abundant fish in the catches in other basins but the vendace was rare. Relict crustaceans and some ‘deep water’ copepods (e.g. Heterocope borealis) played an important role in the food of fish in all basins.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1982-01-01 |